Product Details

Round Carbon Steel SMLS Pipe Carbon Steel Pipe and Tube Cangzhou Steel Pipe Group stocks a variety of carbon structural steel grades in both steel tubes and pipes. Steel tubing size options include rectangular, round, and square. Structural carbon steel shapes are ideal for construction. The variety of shapes available,...

Brief Introduction

Round Carbon Steel SMLS Pipe

Product Name	API Certification and Round Section Shape Carbon Steel Pipes A106 SMLS
Standard	API5L,ASTM, ANSI, GB,DIN,JIS,BS
Material	API 5L Grade B/ASTM A106B,BS1387,10#,20#,45#,ASTM A53(A,B) Q235,Q345
Outer diameter	20~630mm
Wall thickness	2~80mm
Length	5-12m,or according to the customers' requirements
Technics	Cold draw and hot rolled
Surface	Black painting.anti-corrosion oil.galvanized or as per required by customer
Ends	Plastic caps,BE,PE
Package	In bundles or according to the clients' requirements
Usage	The products are widely used in fertilizer, petroleum, centra-station, boiler, PowerStation, shipping military, chemical industry, environment protection, traffic, food industry, medical equipment and so on.
Seamless theoretical weight	Seamless pipe calculation formula: (OD-Wall Thickness)thickness0.02466 = Seamless weight per meter
MOQ	5 ton
Delivery Time	15~30 days
Yearly capacity	200000 tons
Shipment	Container or Bulk

ASTM A53B chemical components and mechanical property
class	Mechanical property
	Tensile strength(MPa)	Yield strength(MPa)
ASTM A53	≥415	≥240

class	Chemical components
class	C	Si	Mn	P	S	Cr	Mo	Cu	Ni	V
ASTM A53	≤0.30	≥0.10	≥1.20	≤0.05	≤0.06	≤0.40	≤0.15	≤0.40	≤0.40	≤0.08

20# chemical components and mechanical property
class	Chemical components(%)
class	C :	Si:	Mn:	S:	P:	Cr:	Ni:	Cu:
20#	0.17~0.24	0.17~0.37	0.35~0.65	≤0.035	≤0.035	≤0.25	≤0.25	≤0.25

Carbon Steel Pipe and Tube

The difference between Q235A and Q235B

A and B in Q235A and Q235B in low alloy steel are the differences of quality grades. The most important difference is whether the impact test at room temperature is needed. A does not need to be done and B needs to be done. There are some subtle differences between Q235A and Q235B:

Chemical composition: Q235A: C:0.14~0.22: Mn: 0.30~0.65;S: 0.050Q235B: C:0.12~0.20: Mn: 0.30~0.70;S: 0.0452. Mechanical properties: there is no difference between tensile test, impact test A is not done, 20 degree impact test B, V impact work (longitudinal) J is not less than 27.

The strength is the same, only the mechanical and chemical properties have some differences.Generally speaking, in the southern region, it is feasible to adopt Q235a for non-welded components without dynamic load.It is feasible to adopt Q235a for the welded components without dynamic load, but the carbon content <=0.2% should be guaranteed, mainly ensuring the weldability.Q235b is generally used for welded, dynamic loading structures.The choice of steel, visible "steel structure design manual" a book.

Q235 is a common carbon structural steel. Its yield point is greater than 235MPa. Its quality grade is divided into four grades: A.B.C.D., which are improved in turn.Number, its meaning is Q235A ingredients: C - 0.14-0.22, Mn - 0.30-0.65, the Si - 0.3-0.05 S, p - 0.045Q235B ingredients: C - 0.12-0.20, Mn - 0.30-0.70, the Si - 0.3, S P - 0.045-0.045The above contents of alloying elements are all percentages.

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

has more than ten years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.

We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel coiled pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.